Will Game of Thrones become a film franchise?

Author George RR Martin reckons the story's finale might be so big, it'll need to be made into a feature film...

It already boasts a big budget, impressive locations and a huge ensemble cast. Its battle scenes (of which there are many) rival blockbusters, while no expense is spared on special effects, scenery or costume. In fact, each episode is almost like a feature film in itself...

But Game of Thrones, the hit HBO fantasy series, might be going even bigger...

George RR Martin, who penned the novels the TV series is based on, says the story's grand finale is so huge that it might need to be made into a movie.

"The books get bigger and bigger," Martin told The Hollywood Reporter. "It might need a feature to tie things up, something with a feature budget, like $100 million for two hours.

"Those dragons get real big, you know..."

Martin's sights aren't just set on one foray into the world of cinema, either. The 65-year-old author suggested that the Tales of Dunk and Egg, a series of spin-off novellas following a knight and a squire in the fictional world of Westeros, might be ripe for a film adaptation too.

"They could be the basis for [a film]. I have written these three stories, and I have about a dozen more," he said.

So watch this space. Soon you might be getting your Thrones fix in a cinema. Maybe in 3D. Then those dragons would look really impressive...

Game of Thrones series four starts on Monday 7 April at 9:00pm on Sky Atlantic